---
title: "Trigger Evolution"
method: POST
path: "/v1/agents/{agent_id}/evolutions"
tags: ["Agent Environment", "evolution"]
---

# Trigger Evolution

`POST /v1/agents/{agent_id}/evolutions`

Trigger evolution for an agent.

Sends the agent's configuration/identifiers to Darwin to start an
evolution job. Optional config overrides (sample_size, target_dimensions,
etc.) are forwarded to Darwin when provided.
Returns 201 Created with a Location header for the new job resource.

## Path parameters

- `agent_id` string, uuid, required

## Request body

- TriggerEvolutionRequest — Optional config overrides for evolution trigger.
  - `sample_size` integer, nullable
  - `min_improvement_threshold` number, nullable
  - `target_dimensions` string[], nullable
  - `max_probes_per_evaluation` integer, nullable
  - `probe_concurrency` integer, nullable
  - `reflection_model` string, nullable
  - `mutation_strategy` string, nullable
  - `gepa_max_metric_calls` integer, nullable
  - `detection_volume_threshold` integer, nullable

## Response `201`

Successful Response

- EvolutionJob — Console-side view of a Darwin evolution job.
  - `evolution_id` string, required
  - `status` string, required
  - `agent_id` string, uuid, nullable
  - `team_id` string, uuid, nullable
  - `extra` object

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/vijilai/apis/vijil-console-api-combined.md) · [All operations](https://skmtc.net/vijilai/apis/vijil-console-api-combined/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/vijilai/vijil-console-api-combined/versions/a8b2ee2b2d06/schema)